export declare namespace layout {
    const MODE_SHIFT = 30;
    const MODE_MASK: number;
    const UNSPECIFIED: number;
    const EXACTLY: number;
    const AT_MOST: number;
    const MEASURED_HEIGHT_STATE_SHIFT = 16;
    const MEASURED_STATE_TOO_SMALL = 16777216;
    const MEASURED_STATE_MASK = 4278190080;
    const MEASURED_SIZE_MASK = 16777215;
    function getMode(mode: number): string;
    function getMeasureSpecMode(spec: number): number;
    function getMeasureSpecSize(spec: number): number;
    function makeMeasureSpec(size: number, mode: number): number;
    function hasRtlSupport(): boolean;
    function getDisplayDensity(): number;
    function toDevicePixels(value: number): number;
    function toDeviceIndependentPixels(value: number): number;
    function round(value: number): number;
    function measureNativeView(nativeView: any, width: number, widthMode: number, height: number, heightMode: number): {
        width: number;
        height: number;
    };
    function measureSpecToString(measureSpec: number): string;
}